Roller head assembly structure of water cooling roller in heat accumulating type heating furnace

Abstract

The utility model provides a roller head assembly structure of a water-cooling roller in a heat accumulating type heating furnace, which comprises the water-cooling roller, a roller head is sleeved at one end of the water-cooling roller, a plurality of fixing holes are arranged on the water-cooling roller along the circumferential direction of the water-cooling roller, a plurality of through holes in one-to-one correspondence with the fixing holes are arranged on the roller head, and positioning pins are arranged in the fixing holes. And the upper parts of the positioning pins are positioned in the corresponding through holes. The roller head is positioned through the positioning pin, the roller head is prevented from moving in the axial direction of the water-cooling roller, and the roller head can be effectively prevented from falling off from the water-cooling roller; the clamping hole and the clamping rod are arranged, so that the positioning pin can be effectively prevented from being separated from the fixing hole, safety and reliability are achieved, and production accidents are effectively prevented; the structure is simple and the processing cost is low.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water -cooled roller equipment technical field relates to a heat accumulation type heating furnace in -house water -cooled roller roll head assembly structure. BACKGROUND

[0002] The in -house water -cooled roller is the key equipment of the heat accumulation type heating furnace of the bar production line, and the assembly mode of the roll head assembly is that the roll head is pressed into the roll shaft end after hot mounting, and the roll head and the roll shaft end are fixed by welding. Because the water -cooled roller roll head part is installed in the furnace end in -house of the heat accumulation type heating furnace, is influenced by high temperature, conveying billet impact, the water -cooled roller roll head and the roll shaft connecting part frequently open welding, after opening welding, the water -cooled roller roll shaft rotates, and the roll head does not rotate, which affects the heating furnace billet into the furnace, and the furnace conveying, in addition, there is the risk of roll head falling when the water -cooled roller roll head and the roll shaft connecting part open welding, the roll head directly below is generally the position of the heat accumulation type heating furnace slag discharge pipe, and the roll head falling will block the slag discharge pipe, causing the heat accumulation type heating furnace production large equipment accident, and the heating furnace cannot normally discharge the iron scale generated during heating of the billet, and when the iron scale in the furnace accumulates more, the normal action of the walking beam will be affected, and the water -cooled roller roll head fallen in the furnace needs to be taken out after the heating furnace is extinguished and shut down, and personnel can only be taken out after entering the furnace in -house, and generally needs to be shut down and extinguished for about one week for maintenance. SUMMARY

[0003] The utility model discloses a kind of heat accumulation type heating furnace in -house water -cooled roller roll head assembly structure, to solve the problem that the water -cooled roller roll head in the background art is easy to open welding and fall off in the process of running.

[0004] To this end, the utility model takes the following technical scheme:

[0005] A heat accumulation type heating furnace in -house water -cooled roller roll head assembly structure, including water -cooled roller, one end of the water -cooled roller is sleeved with roll head, a plurality of fixed holes are arranged on the water -cooled roller along the circumference of the water -cooled roller, a plurality of through holes corresponding one-to-one with the fixed hole are arranged on the roll head, a positioning pin is arranged in the fixed hole, and the upper part of the positioning pin is located in the corresponding through hole.

[0006] Further, the fixed hole is 2-4.

[0007] Further, one end of the roll head is provided with a plurality of clamping holes corresponding one-to-one and communicating with the through holes, a clamping rod is arranged in the clamping hole, the inner end of the clamping rod is located in the corresponding through hole, and the end of the positioning pin abuts against the clamping rod.

[0008] Further, the clamping hole is horizontally arranged.

[0009] Further, one end of the water -cooled roller is provided with a shaft shoulder, one end of the roll head is provided with a clamping groove, and the shaft shoulder is located in the clamping groove.

[0010] The utility model discloses a beneficial effect lies in: through the positioning pin is positioned to the roll head, prevents the roll head from moving along the water -cooling roller axial movement, can effectively prevent the roll head from falling from the water -cooling roller, set up the clamping hole and the clamping rod, can effectively prevent the positioning pin from the fixed hole inside and take out, safe and reliable, effectively prevent the production accident, simple structure, low processing cost. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structural schematic diagram of the utility model;

[0012] In the drawing, 1 - water -cooling roller, 2 - roll head, 3 - fixed hole, 4 - through -hole, 5 - positioning pin, 6 - clamping hole, 7 - clamping rod, 8 - shaft shoulder, 9 - clamping groove. DETAILED DESCRIPTION

[0013] The utility model will be explained in detail below in combination with the drawings:

[0014] As Figure 1 Shown, a heat accumulating type heating furnace in -house water -cooling roller roll head assembly structure, including water -cooling roller 1, water -cooling roller 1 is the existing heating furnace conventional cantilever water -cooling roller, and the one end of water -cooling roller 1 is sleeved with roll head 2, and water -cooling roller 1 is provided with 2-4 fixed holes 3 along the circumferential direction of water -cooling roller 1, and 2 fixed holes 3 are provided in the embodiment, and roll head 2 is provided with a plurality of through -holes 4 corresponding to fixed hole 3 one by one, and positioning pin 5 is arranged in fixed hole 3, and the upper portion of positioning pin 5 is located in the corresponding through -hole 4, and the roll head 2 can be limited on water -cooling roller 1 along water -cooling roller 1 axial movement back and forth by positioning pin, and then prevent roll head 2 from falling from water -cooling roller 1, and drop into the heating furnace slag discharge pipe, in order to prevent positioning pin 5 from taking out after using for a period of time, and the one end of roll head 2 is provided with a plurality of clamping holes 6 corresponding to through -hole 4 and being communicated, and the clamping hole 6 is horizontally arranged, and the clamping rod 7 is arranged in the clamping hole 6, and the inner end of clamping rod 7 is located in the corresponding through -hole 4, and the end of positioning pin 5 abuts against clamping rod 7, and can effectively prevent positioning pin 5 from taking out from fixed hole 3 and through -hole 4 by clamping rod 7 blocking, in order to fix clamping rod 7 in clamping hole 6, the end of clamping rod 7 can be welded.

[0015] Water -cooling roller 1 is provided with shaft shoulder 8 close to the one end of roll head 2, and the one end of roll head 2 is provided with clamping groove 9, and shaft shoulder 8 is located in clamping groove 9, and the displacement of roll head 2 is limited by shaft shoulder 8, and further ensure that roll head 2 will not fall on water -cooling roller 1.

[0016] The use mode of the utility model is as follows:

[0017] When the water-cooled roller is used, the positioning pin 5 is arranged in the fixing hole 3 of the water-cooled roller 1, and even if the roll head 2 is separated from the water-cooled roller 1, the roll head 2 can be effectively prevented from moving along the axial direction of the water-cooled roller 1 and falling off the water-cooled roller 1 under the action of the positioning pin 5, and meanwhile, the clamping rod 7 can prevent the positioning pin 5 from being pulled out of the fixing hole 3 and the through hole 4. In addition, due to the limitation of the shaft shoulder 8, the roll head 2 can be effectively prevented from falling off the water-cooled roller 1 to the position of the slag discharge pipe of the heat accumulating heating furnace, thereby causing an accident.

Claims

1. A regenerative heating furnace internal water-cooled roller head assembly structure, characterized in that, The device includes a water-cooled roller (1), one end of which is fitted with a roller head (2). The water-cooled roller (1) has multiple fixing holes (3) along its circumference. The roller head (2) has multiple through holes (4) corresponding to the fixing holes (3). The fixing holes (3) are fitted with positioning pins (5). The upper part of the positioning pins (5) is located in the corresponding through holes (4). One end of the roller head (2) has multiple locking holes (6) corresponding to and connected to the through holes (4). The locking holes (6) are fitted with locking rods (7). The inner end of the locking rods (7) is located in the corresponding through holes (4). The end of the positioning pins (5) abuts against the locking rods (7).

2. The regenerative heating furnace in-furnace water-cooled roller head assembly structure according to claim 1, characterized in that, There are 2-4 fixing holes (3).

3. The regenerative heating furnace in-furnace water-cooled roller head assembly structure according to claim 1, characterized in that, The locking hole (6) is horizontally positioned.

4. The regenerative heating furnace in-furnace water-cooled roller head assembly structure according to claim 1, characterized in that, The water-cooled roller (1) has a shoulder (8) at one end near the roller head (2), and a groove (9) is provided at one end of the roller head (2), with the shoulder (8) located in the groove (9).

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